Add the INFINITESIMAL_PATTERNS to the visualization. The expanding edges are shown in green,
the shrinking edges in red and those with fixed length in black.
If the optional argument onewindow is false, every pattern is displayed in a separate window.
Add the EXPANSIVE_PATTERNS to the visualization. The expanding edges are shown in green.
If the optional argument onewindow is false, every patternis displayed in a separate window.
Add the EXPANSIVE_RIGID_COMPONENTS to the visualization of a framework, i.e.
for each EXPANSIVE_MOTIONS add its rigid components.
If the optional argument onewindow is false, every component is displayed in a separate window.
Each auxiliary method always returns the visual object it was called with ($this), which makes it easy to build longer method
chains of the kind: VISUAL->DIRECTED_GRAPH->VERTEX_COLORS .